I think they were honking at him because he was in their way...I, myself, have a prosthetic leg and I have helped severely handicapped people get in and out of their cars and wheelchairs in parking lots because I know what they go through and how it can be difficult...People with no handicaps just look and walk by or go around and offer no assistance...
It would interfere with their precious time to help it seems...
You have to be such a low life to not help.